EFFECT OF GRINDING WHEEL TOPOGRAPHY AND WORKPIECE ROUGHNESS ON GRINDING FLUID FLOW INJECTION AND FLUID PERFORMANCE IN QUICK-POINT GRINDING
Quick-point grinding belongs to high/super-high speed grinding. The thermal model and grinding zone are different from traditional cylinder traverse grinding because of the swivel angle between grinding wheel axis and workpiece axis. The wheel topography and workpiece surface roughness are introduced. Applying a modified Reynolds equation, a laminar flows model through the rough surfaces of Quick-point grinding zone is presented. It was found that the flow rate through the contact zone was in terms of fluid pressure, injection flow rate, wheel velocity, fluid density, and swivel angle. Air flow on the wheel periphery caused by wheels high speed rotation interferes with the delivery of grinding fluid, but it was found that the fluid entered the zone more easily because of the wheels small thickness. It was verified experimentally that the necessary of fluid flow was much less than traditional cylindrical grinding. Quick-point grinding process is clean with excellent characteristic of green manufacturing. The wheel surface topography is evaluated the grain shapes, grains distribution and the protrusion height of grains. and workpiece surface roughness are analized,
Quick-point grinding Grinding wheel topography Workpiece surface roughness Useful grinding fluid rate Hydrodynami cpressure
J. Qiu Y.D. Gong
School of Mechanical Engineering and Automation, Northeastern University, No.11, Lane 3, WenHua Road School of Mechanical Engineering and Automation, Northeastern University, No.11, Lane 3, WenHua Road
国际会议
上海
英文
1-7
2009-08-02（万方平台首次上网日期，不代表论文的发表时间）